package com.guigu.exam.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.guigu.exam.common.Result;
import com.guigu.exam.entity.Banner;
import com.guigu.exam.service.BannerService;
import com.guigu.exam.service.FileUploadService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.util.Date;
import java.util.List;
//@CrossOrigin解决跨域问题
@Tag(name = "轮播图管理接口")
@RestController
@RequestMapping("/api/banners")
public class BannerController {
    @Autowired
    private BannerService bannerService;

    @Autowired
    private FileUploadService fileUploadService;
    @Operation(summary = "获取所有轮播图信息")
    @GetMapping("/list")
    public Result<List<Banner>> list() {
        //创建LambdaQueryWrapper对象
        LambdaQueryWrapper<Banner> bannerLambdaQueryWrapper = new LambdaQueryWrapper<>();
        //按照排序字段升序排序
        bannerLambdaQueryWrapper.orderByAsc(Banner::getSortOrder);
        //调用BannerService中的list方法
        List<Banner> list = bannerService.list(bannerLambdaQueryWrapper);
        return Result.success(list);
    }

    @Operation(summary = "获取激活状态的轮播图信息")
    @GetMapping("/active")
    public Result activeList(){
        //调用BannerService中的list方法
        List<Banner> list = bannerService.list(new LambdaQueryWrapper<Banner>().eq(Banner::getIsActive, true));
        return Result.success(list);
    }
    @Operation(summary = "根据id获取轮播图信息")
    @GetMapping("/{id}")
    public Result<Banner> getById(@PathVariable Long id){
        //调用BannerService中的getById方法
        Banner banner = bannerService.getById(id);
        return Result.success(banner);
    }
/*    @Operation(summary = "添加轮播图信息")
    @PostMapping("/add")
    public Result add(@RequestBody Banner banner){
        //调用BannerService中的save方法
        boolean save = bannerService.save(banner);
        if(save){
            return Result.success("添加成功");
        }else{
            return Result.error("添加失败");
        }
    }
    @Operation(summary = "更新轮播图信息")
    @PutMapping("/update")
    public Result update(@RequestBody Banner banner){
        //调用BannerService中的updateById方法
        boolean update = bannerService.updateById(banner);
        if(update){
            return Result.success("更新成功");
        }else{
            return Result.error("更新失败");
        }
    }*/
    @Operation(summary = "添加或者更新轮播图信息")
    @RequestMapping(value={"/add", "/update"},method = {RequestMethod.POST,RequestMethod.PUT})
    public Result saveOrUpdate(@RequestBody Banner banner){
        //调用BannerService中的saveOrUpdate方法
        boolean b = bannerService.saveOrUpdate(banner);
        if(b){
            return Result.success("添加或者更新成功");
        }else{
            return Result.error("添加或者更新失败");
        }

    }
    @Operation(summary = "删除轮播图信息")
    @DeleteMapping("/delete/{id}")
    public Result delete(@PathVariable Long id){
        //调用BannerService中的removeById方法
        boolean b = bannerService.removeById(id);
        if(b){
            return Result.success("删除成功");
        }else{
            return Result.error("删除失败");
        }
    }




@Operation(summary = "上传轮播图")
@PostMapping("/upload-image")
public Result uploadImage(MultipartFile file){
    //调用FileUploadService中的uploadFile方法
    String url=fileUploadService.uploadFile(file);
    return Result.success(url,"上传轮播图成功");
}
@Operation(summary = "更新轮播图的激活状态")
@PutMapping("/toggle/{id}")
public Result toggle(@PathVariable Long id,@RequestParam Boolean isActive){
    //创建LambdaUpdateWrapper对象
    LambdaUpdateWrapper<Banner> bannerLambdaUpdateWrapper = new LambdaUpdateWrapper<>();
    //设置要更新的字段
    bannerLambdaUpdateWrapper.set(Banner::getIsActive,isActive).set(Banner::getUpdateTime,new Date());
    //设置查询条件
    bannerLambdaUpdateWrapper.eq(Banner::getId,id);
    //调用BannerService中的update方法
    boolean update = bannerService.update(bannerLambdaUpdateWrapper);
    if(update){
        return Result.success("更新激活状态成功");
    }else{
        return Result.error("更新激活状态失败");
    }
}}
